WO2020134346A1 - 发声器件 - Google Patents

发声器件 Download PDF

Info

Publication number
WO2020134346A1
WO2020134346A1 PCT/CN2019/110613 CN2019110613W WO2020134346A1 WO 2020134346 A1 WO2020134346 A1 WO 2020134346A1 CN 2019110613 W CN2019110613 W CN 2019110613W WO 2020134346 A1 WO2020134346 A1 WO 2020134346A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
main
magnetic
auxiliary
magnet
Prior art date
Application number
PCT/CN2019/110613
Other languages
English (en)
French (fr)
Inventor
刘晓东
张龙
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2020134346A1 publication Critical patent/WO2020134346A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H04R9/027—Air gaps using a magnetic fluid
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H04R9/043—Inner suspension or damper, e.g. spider
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the invention relates to the field of sound and electricity, in particular to a sound-emitting device used in portable electronic products.
  • the vibration system of the related-art sound-generating device includes a diaphragm for vibrating and sounding fixed to the basin frame, a voice coil attached to the diaphragm, and a voice coil supported at an end of the voice coil away from the diaphragm to strengthen the
  • An elastic support assembly for the lateral stability of the voice coil includes a yoke fixed to the basin frame, a main magnetic steel fixed to the yoke, respectively disposed on opposite sides of the main magnetic steel and The main magnetic steel is separated by two auxiliary magnetic steels forming a magnetic gap and a clamping plate stacked on the auxiliary magnetic steel;
  • the elastic support assembly includes two and are respectively located on two opposite sides of the main magnetic steel.
  • the gap between the position where the splint faces the elastic support assembly and the voice coil is large, and the space is not effectively used, which limits the acoustic performance of the sound-generating device .
  • the object of the present invention is to provide a sound-generating device with excellent acoustic performance and good reliability.
  • the present invention provides a sound-generating device, which includes a basin frame and a vibration system respectively fixed to the basin frame and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a diaphragm fixed to the basin frame A voice coil fixed to the diaphragm and inserted in the magnetic gap to drive the vibration of the diaphragm and an elastic support assembly fixed to the basin frame and connected to the voice coil at an end far away from the diaphragm
  • the magnetic circuit system includes a yoke fixed to the basin frame, a main magnet fixed to the yoke, respectively located on opposite sides of the main magnet and spaced apart from the main magnet to form the magnet A gapped secondary magnet and a splint stacked on the secondary magnet and spaced apart from the elastic support assembly; the elastic support assembly and the secondary magnet are on the yoke along the vibration direction of the diaphragm
  • the orthographic projection of at least partially does not overlap, the splint includes a ring-shaped main body stacked on the basin
  • the orthographic projections of the auxiliary magnetic steel and the auxiliary magnetic steel on the yoke along the vibration direction of the diaphragm do not overlap each other.
  • the support portion includes a first wall bent and extending in the direction of the diaphragm from the main body and a bent and extending direction of the main magnet from an end of the first wall close to the diaphragm
  • the second wall, the auxiliary magnetic steel is fixed to a side of the second wall away from the diaphragm.
  • the auxiliary magnetic steel abuts the side of the first wall close to the main magnetic steel.
  • both the main magnetic steel and the auxiliary magnetic steel are magnetized along the vibration direction of the diaphragm, and the magnetic poles of the main magnetic steel are opposite to the magnetic poles of the auxiliary magnetic steel.
  • the magnetic pole at the end of the auxiliary magnetic steel close to the diaphragm is S pole, and the magnetic pole at the end close to the elastic support assembly is N pole.
  • the main magnetic steel is magnetized in the vibration direction of the diaphragm
  • the auxiliary magnetic steel is magnetized in a direction perpendicular to the vibration direction of the diaphragm.
  • the magnetic pole at the end of the auxiliary magnet close to the main magnet is S pole
  • the magnetic pole at the end far away from the main magnet is N pole.
  • the main magnetic steel has a rectangular shape
  • two of the auxiliary magnetic steels are respectively located on opposite sides of the main magnetic steel long axis
  • the two elastic supporting components are respectively located on opposite sides of the main magnetic steel short axis
  • the two auxiliary magnets are respectively located on opposite sides of the main magnet short axis.
  • the elastic support assembly includes an elastic member fixed at one end to the basin frame, at the other end to the voice coil away from the diaphragm, and an auxiliary connected to the elastic member at a side away from the diaphragm Diaphragm.
  • the elastic member is a flexible circuit board, and the voice coil is electrically connected to the elastic member.
  • the sound-generating device of the present invention includes a diaphragm, a voice coil fixed to the diaphragm and driving it to vibrate, and an elastic support assembly connected to the end of the voice coil away from the diaphragm.
  • Auxiliary magnet steel is added to the position of the elastic support assembly.
  • the auxiliary magnet steel includes two and is located on opposite sides of the main magnet steel respectively.
  • the magnetization direction of the auxiliary magnet steel is different from that of the main magnet steel.
  • the magnetic direction is parallel or perpendicular.
  • the above structure makes the space between the part of the splint corresponding to the elastic support component and the diaphragm fully utilized by the provision of the auxiliary magnetic steel, which greatly improves the magnetic
  • the driving magnetic force of the road system effectively increases the acoustic performance of the sound-generating device and improves the vibration symmetry of the sound-generating device, and the reliability is better.
  • FIG. 1 is a schematic diagram of a stereo structure of a sound-emitting device of the present invention
  • FIG. 2 is an exploded view of a part of the stereo structure of the sound-generating device of the present invention
  • Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
  • FIG. 4 is an assembly diagram of the splint of the sound-emitting device of the present invention and the auxiliary magnetic steel.
  • the present invention provides a sound-generating device 100, including a basin frame 1, a vibration system 2 and a magnetic circuit system 3 and a front cover 4 respectively fixed to the basin frame 1, the magnetic circuit system 3 has In the magnetic gap 10, the magnetic circuit system 3 is used to drive the vibration system 2 to vibrate and sound.
  • the vibration system 2 includes a diaphragm 21 fixed to the basin frame 1, a voice coil 22 fixed to the diaphragm 21 and inserted into the magnetic gap 10 to drive the diaphragm 21 to vibrate and sound, and fixed to An elastic support assembly 23 connected to the end of the basin frame 1 and the voice coil 22 away from the diaphragm 21.
  • the elastic support assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232 connected to the elastic member 231.
  • the elastic support assembly 23 connects and supports the end of the voice coil 22 away from the diaphragm 21 to the basin frame 1. On the one hand, it is used to strengthen the vibration effect of the diaphragm 21 and improve the acoustic performance of the sound-generating device 100, and on the other hand, it is used to balance the sway of the vibration system 2 and improve the stability of the sound-generating device 100. It should be noted that the elastic support assembly 23 may also include only one of the elastic member 231 or the auxiliary diaphragm 232, which is also feasible.
  • the elastic member 231 is a flexible circuit board, and the voice coil 22 is electrically connected to the elastic member 231. On the one hand, it is used to improve the vibration strength and balance of the vibration system 2 and to suppress sway. On the other hand, the voice coil 22 is led to connect to an external power supply, avoiding the risk of the voice coil lead being easily broken when the voice coil lead structure is led out .
  • the magnetic circuit system 3 includes a magnetic yoke 31 fixed to the basin frame 1, a main magnetic steel 32 fixed to the magnetic yoke 31, and respectively located on opposite sides of the main magnetic steel 32 and connected to the main magnetic steel 32 spaced apart two auxiliary magnetic steels 33 forming the magnetic gap 10, a clamping plate 34 stacked on the auxiliary magnetic steels 33 and spaced apart from the elastic support assembly 23, and two auxiliary magnetic steels 35.
  • the orthographic projection of the elastic support assembly 23 and the auxiliary magnetic steel 33 on the yoke 31 along the vibration direction of the diaphragm 21 does not overlap at least partially.
  • the orthographic projections of the auxiliary magnetic steel 35 and the auxiliary magnetic steel 33 on the yoke 31 along the vibration direction of the diaphragm 21 do not overlap each other.
  • the clamping plate 34 includes a ring-shaped main body 341 stacked on the auxiliary magnetic steel 33 and two support portions 342 extending toward the main magnetic steel 32 from opposite sides of the main body 341 respectively.
  • the portion 342 is spaced from the main magnet 32.
  • the two auxiliary magnets 35 are respectively fixed to the two support parts 342 and spaced apart from the main magnet 32.
  • the arrangement of the supporting portion 342 enables the auxiliary magnetic steel 35 to be closer to the main magnetic steel 32, effectively increasing the magnetic line density in the magnetic gap 10 and improving the driving performance.
  • the two auxiliary magnetic steels 35 are located on the side of the two support portions 342 away from the diaphragm 21 and are respectively arranged at intervals from the two elastic support assemblies 23.
  • the supporting portion 342 includes a first wall 3421 bent and extending from the main body 341 in the direction of the diaphragm 21, and an end of the first wall 3421 close to the diaphragm 21 facing the main magnet
  • the second wall 3422 which is bent and extends in the direction of the steel 32, is spaced apart.
  • the auxiliary magnetic steel 35 is fixed to a side of the second wall 3422 away from the diaphragm 21. More preferably, the auxiliary magnetic steel 35 abuts the side of the first wall 3421 close to the main magnetic steel 32 to form a fixing, increase the fixing strength of the auxiliary magnetic steel 35, improve reliability and assembly Precision.
  • the elastic support assembly 23 includes two and are located on opposite sides of the main magnet 32 respectively, and the two auxiliary magnets 35 are located on the support portion 342 away from the diaphragm 21 On one side of each of the two elastic support assemblies 23 and are directly spaced apart from each other.
  • the two elastic support assemblies 23 have a centrally symmetric structure with respect to the main magnetic steel 32, and this arrangement makes the vibration balance of the vibration system 2 better.
  • the two elastic support members 23 and the two auxiliary magnets 35 are respectively located on different opposite sides of the main magnet 32, and are arranged around the main magnet 32 together .
  • the main magnetic steel 32 has a rectangular shape
  • the two auxiliary magnetic steels 33 are respectively located on opposite sides of the long axis of the main magnetic steel 32
  • the two elastic support assemblies 23 are respectively located on the main magnetic
  • the two auxiliary magnets 35 are located on opposite sides of the short axis of the main magnetic steel 32, respectively.
  • the position of the clamping plate 34 facing the elastic support assembly 23 is not provided with a magnetic steel structure because of the need to give way to the elastic support assembly 23, so that the position is away from the voice coil 22 and the diaphragm 21
  • the two auxiliary magnetic steels 35 are added at this position to utilize the extra space, which greatly improves the driving performance of the magnetic circuit system 3 and makes the acoustic performance of the sound emitting device 100 more it is good.
  • both the main magnet 32 and the auxiliary magnet 35 are magnetized in the vibration direction of the diaphragm 21, and the magnetic pole of the main magnet 32 is opposite to the magnetic pole of the auxiliary magnet 35 Settings.
  • the magnetic pole at the end of the auxiliary magnetic steel 35 near the diaphragm 21 is S pole
  • the magnetic pole at the end near the elastic support assembly 23 is N pole.
  • the distribution of the magnetic poles of the main magnetic steel 32 and the The elastic support assembly 23 is reversed.
  • the magnetic poles can also be arranged uniformly.
  • the main magnetic steel 32 is magnetized in the vibration direction of the diaphragm 21, and the auxiliary magnetic steel 35 is magnetized in a direction perpendicular to the vibration direction of the diaphragm 21.
  • the magnetic pole at the end of the auxiliary magnet 35 close to the main magnet 32 is S pole, and the magnetic pole at the end away from the main magnet 32 is N pole; the main magnet 35 is close to the diaphragm
  • the magnetic pole at one end of 21 is N pole, and the magnetic pole at one end away from the diaphragm 21 is S pole, which is feasible.
  • the magnetization directions of the auxiliary magnetic steel 35 and the main magnetic steel 32 improve the vibration symmetry of the sound generating device 100, that is, improve the reliability of the sound generating device 100.
  • the front cover 4 covers the end of the basin shelf close to the diaphragm 21 and surrounds the diaphragm 21 to form a sound emitting cavity.
  • the front cover 4 is provided with a sound outlet 41 and the cover
  • the damping layer 42 of the sound outlet 41 is used to adjust the high-frequency acoustic performance of sound generation.
  • the sound-generating device of the present invention includes a diaphragm, a voice coil fixed to the diaphragm and driving it to vibrate, and an elastic support assembly connected to the end of the voice coil away from the diaphragm.
  • Auxiliary magnet steel is added to the position of the elastic support assembly.
  • the auxiliary magnet steel includes two and is located on opposite sides of the main magnet steel respectively.
  • the magnetization direction of the auxiliary magnet steel is different from that of the main magnet steel.
  • the magnetic direction is parallel or perpendicular.
  • the above structure makes the space between the part of the splint corresponding to the elastic support component and the diaphragm fully utilized by the provision of the auxiliary magnetic steel, which greatly improves the magnetic
  • the driving magnetic force of the road system effectively increases the acoustic performance of the sound-generating device and improves the vibration symmetry of the sound-generating device, and the reliability is better.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本发明提供了一种发声器件，包括盆架、振动***和磁路***，振动***包括振膜、音圈以及固定于盆架并与音圈远离振膜一端连接的弹性支撑组件；磁路***包括磁轭、主磁钢、分别位于所述主磁钢相对两侧且与所述主磁钢间隔形成磁间隙的两个副磁钢、叠设于副磁钢且与弹性支撑组件间隔的夹板以及两个辅助磁钢；弹性支撑组件包括两个且分别位于主磁钢的另外相对两侧；夹板包括叠设于副磁钢且呈环状的主体和由主体相对两侧分别向主磁钢延伸的两个支撑部，支撑部与主磁钢间隔；两个辅助磁钢分别固定于两个支撑部远离振膜的一侧并与主磁钢间隔。与相关技术相比，本发明的发声器件可靠性好且声学性能优。

Description

发声器件 技术领域
本发明涉及声电领域，尤其涉及一种运用于便携式电子产品的发声器件。
 背景技术
随着移动互联网时代的到来，智能移动设备的数量不断上升。而在众多移动设备之中，手机无疑是最常见、最便携的移动终端设备。用于播放声音的发声器件被大量应用到现在的手机等智能移动设备之中。而运用在发声器件的振动***和磁路***直接关系着发声器件的音质好坏。
相关技术发声器件的振动***包括固定于盆架的用于振动发声的振膜、贴设于所述振膜的音圈、支撑于所述音圈远离所述振膜一端的用于加强所述音圈的横向稳定性弹性支撑组件；所述磁路***包括固定于盆架的磁轭、固定于所述磁轭的主磁钢、分别设置于所述主磁钢相对两侧且与所述主磁钢间隔形成磁间隙的两个副磁钢以及叠设于所述副磁钢的夹板；所述弹性支撑组件包括两个且分别位于所述主磁钢的另外相对两侧。
 技术问题
然而，相关技术的所述发声器件中，所述夹板正对所述弹性支撑组件的位置与所述音圈之间的间隙较大，空间未能有效利用，限制了所述发声器件的声学性能。
因此，实有必须提供一种新的发声器件解决上述技术问题。
 技术解决方案
本发明的目的在于提供一种声学性能优且可靠性好的发声器件。
为达到上述目的，本发明提供一种发声器件，包括盆架以及分别固定于所述盆架的振动***和具有磁间隙的磁路***，所述振动***包括固定于所述盆架的振膜、固定于所述振膜并插设于所述磁间隙以驱动所述振膜振动发声的音圈以及固定于所述盆架并与所述音圈远离所述振膜一端连接的弹性支撑组件；所述磁路***包括固定于所述盆架的磁轭、固定于所述磁轭的主磁钢、分别位于所述主磁钢相对两侧且与所述主磁钢间隔形成所述磁间隙的副磁钢以及叠设于所述副磁钢且与所述弹性支撑组件间隔的夹板；所述弹性支撑组件与所述副磁钢沿所述振膜的振动方向在所述磁轭上的正投影至少部分不重叠，所述夹板包括叠设于所述副磁钢且呈环状的主体和由所述主体相对两侧分别向所述主磁钢方向延伸的支撑部，所述支撑部与所述主磁钢间隔；所述磁路***还包括分别固定于所述支撑部并与所述主磁钢间隔的辅助磁钢，所述辅助磁钢位于所述支撑部的远离所述振膜的一侧且分别与所述弹性支撑组件正对间隔设置。
优选的，所述辅助磁钢和所述副磁钢沿所述振膜的振动方向在所述磁轭上的正投影互不重叠。
优选的，所述支撑部包括由所述主体向所述振膜方向弯折延伸的第一壁以及由所述第一壁靠近所述振膜的一端向所述主磁钢方向弯折延伸的第二壁，所述辅助磁钢固定于所述第二壁远离所述振膜的一侧。
优选的，所述辅助磁钢抵接于所述第一壁的靠近所述主磁钢的一侧。优选的，所述主磁钢与所述辅助磁钢均沿所述振膜的振动方向充磁，且所述主磁钢的磁极与所述辅助磁钢的磁极相反设置。
优选的，所述辅助磁钢靠近所述振膜的一端的磁极为S极，其靠近所述弹性支撑组件的一端的磁极为N极。
优选的，所述主磁钢沿所述振膜的振动方向充磁，所述辅助磁钢沿垂直于所述振膜振动方向充磁。
优选的，所述辅助磁钢靠近所述主磁钢的一端的磁极为S极，其远离所述主磁钢的一端的磁极为N极。
优选的，所述主磁钢呈矩形，两个所述副磁钢分别位于所述主磁钢长轴相对两侧，两个所述弹性支撑组件分别位于所述主磁钢短轴相对两侧，两个所述辅助磁钢分别位于所述主磁钢短轴相对两侧。
优选的，所述弹性支撑组件包括一端固定于所述盆架，另一端固定于所述音圈远离所述振膜一端的弹性件以及连接于所述弹性件远离所述振膜一侧的辅助振膜。
优选的，所述弹性件为柔性电路板，所述音圈与所述弹性件电连接。
 有益效果
与相关技术相比，本发明的发声器件包括振膜、固定于所述振膜并驱动其振动的音圈和连接于音圈远离所述振膜一端的弹性支撑组件，通过在所述夹板对应所述弹性支撑组件的位置增加辅助磁钢，所述辅助磁钢包括两个且分别位于所述主磁钢的相对两侧，所述辅助磁钢的充磁方向与所述主磁钢的充磁方向平行或垂直，上述结构使得所述夹板对应所述弹性支撑组件的部分与所述振膜之间的空间因设置所述辅助磁钢而得以充分利用，极大程度的提高了所述磁路***的驱动磁力，有效增加了所述发声器件的声学性能和改善了所述发声器件的振动对称性，可靠性更好。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本发明发声器件的立体结构示意图；
图2为本发明发声器件的部分立体结构分解图；
图3为沿图1中A-A线的剖示图；
图4为本发明发声器件的夹板与辅助磁钢的装配图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请参图1-4所示，本发明提供一种发声器件100，包括盆架1、分别固定于盆架1的振动***2和磁路***3以及前盖4，所述磁路***3具有磁间隙10，所述磁路***3用于驱动所述振动***2振动发声。
所述振动***2包括固定于所述盆架1的振膜21、固定于所述振膜21并插设于所述磁间隙10以驱动所述振膜21振动发声的音圈22以及固定于所述盆架1并与所述音圈22远离所述振膜21一端连接的弹性支撑组件23。
本实施方式中，所述弹性支撑组件23包括弹性件231和连接于所述弹性件231的辅助振膜232。
所述弹性件231一端固定于所述盆架1，另一端固定于所述音圈22的远离所述振膜21一端，所述辅助振膜232连接于所述弹性件231。比如，所述辅助振膜232贴合固定于所述弹性件231的远离所述振膜21的一侧。所述弹性支撑组件23将所述音圈22远离所述振膜21的一端连接支撑至所述盆架1。一方面用于加强所述振膜21的振动效果，改善所述发声器件100的声学性能，另一方面用于平衡所述振动***2的摇摆，提高所述发声器件100的稳定性。需要说明的是，所述弹性支撑组件23可也可只包括弹性件231或所述辅助振膜232的其中一个，这也是可行的。
更优的，所述弹性件231为柔性电路板，所述音圈22与所述弹性件231电连接。一方面用于提高所述振动***2的振动强度和平衡，抑制摇摆，另一方向为所述音圈22引出至连接外部电源，避免了音圈引线结构引出电源时音圈引线容易断裂的风险。
所述磁路***3包括固定于所述盆架1的磁轭31、固定于所述磁轭31的主磁钢32、分别位于所述主磁钢32相对两侧且与所述主磁钢32间隔形成所述磁间隙10的两个副磁钢33、叠设于所述副磁钢33且与所述弹性支撑组件23间隔的夹板34以及两个辅助磁钢35。所述弹性支撑组件23与所述副磁钢33沿所述振膜21的振动方向在所述磁轭31上的正投影至少部分不重叠。所述辅助磁钢35和所述副磁钢33沿所述振膜21的振动方向在所述磁轭31上的正投影互不重叠。
所述夹板34包括叠设于所述副磁钢33且呈环状的主体341和由所述主体341相对两侧分别向所述主磁钢32方向延伸的两个支撑部342，所述支撑部342与所述主磁钢32间隔。两个所述辅助磁钢35分别固定于两个所述支撑部342并与所述主磁钢32间隔。所述支撑部342的设置使得所述辅助磁钢35可更靠近所述主磁钢32，有效增加所述磁间隙10内的磁力线密度，提高驱动性能。
本实施方式中，两个所述辅助磁钢35位于两个所述支撑部342的远离所述振膜21的一侧且分别与两个所述弹性支撑组件23正对间隔设置。
具体的，所述支撑部342包括由所述主体341向所述振膜21方向弯折延伸的第一壁3421以及由所述第一壁3421靠近所述振膜21的一端向所述主磁钢32方向弯折延伸且间隔设置的第二壁3422。所述辅助磁钢35固定于所述第二壁3422远离所述振膜21的一侧。更优的，所述辅助磁钢35抵接于所述第一壁3421的靠近所述主磁钢32的一侧以形成固定，增加所述辅助磁钢35的固定强度，提高可靠性和装配精度。
本实施方式中，所述弹性支撑组件23包括两个且分别位于所述主磁钢32的另外相对两侧，两个所述辅助磁钢35位于所述支撑部342的远离所述振膜21的一侧且分别与两个所述弹性支撑组件23正对间隔设置。两个所述弹性支撑组件23关于所述主磁钢32呈中心对称结构，该设置使所述振动***2的振动平衡性更好。
也就是说，本实施方式中，两个所述弹性支撑组件23与两个所述辅助磁钢35分别位于所述主磁钢32的不同的相对两侧，共同环绕所述主磁钢32设置。
本实施方式中，所述主磁钢32呈矩形，两个所述副磁钢33分别位于所述主磁钢32长轴相对两侧，两个所述弹性支撑组件23分别位于所述主磁钢32短轴相对两侧，则两个所述辅助磁钢35分别位于所述主磁钢32短轴相对两侧。该设置则可尽大程度的保持磁路***3的结构体积最大化，从而保持磁场强度。
相关技术中所述夹板34正对所述弹性支撑组件23的位置因需给所述弹性支撑组件23让位而没有设置磁钢结构，使得该位置距所述音圈22及所述振膜21存在较大的空间未被有效利用，从而限制了所述磁路***3的驱动力，进而限制了所述发声器件100的声学性能。因此，本发明中在该位置处理增加两个所述辅助磁钢35，将多余空间利用，极大程序的提高了所述磁路***3的驱动性能，使得所述发声器件100的声学性能更好。
本实施方式中，所述主磁钢32与所述辅助磁钢35均沿所述振膜21的振动方向充磁，且所述主磁钢32的磁极与所述辅助磁钢35的磁极相反设置。比如，所述辅助磁钢35靠近所述振膜21的一端的磁极为S极，其靠近所述弹性支撑组件23的一端的磁极为N极，所述主磁钢32的磁极分布与所述弹性支撑组件23相反。当然，也可以将磁极设置呈一致。
或者，所述主磁钢32沿所述振膜21的振动方向充磁，所述辅助磁钢35沿垂直于所述振膜21振动方向充磁。比如，所述辅助磁钢35靠近所述主磁钢32的一端的磁极为S极，其远离所述主磁钢32的一端的磁极为N极；所述主磁钢35靠近所述振膜21的一端的磁极为N极，远离所述振膜21的一端的磁极为S极，这都是可行的。
上述辅助磁钢35与所述主磁钢32的充磁方向改善了所述发声器件100的振动对称性，即提高了所述发声器件100的可靠性。
所述前盖4盖设于所述盆架的靠近所述振膜21的一端且与所述振膜21围成发声腔体，所述前盖4设有出声口41以及盖设于所述出声口41的阻尼层42，用以实现发声的高频声学性能的调节。
与相关技术相比，本发明的发声器件包括振膜、固定于所述振膜并驱动其振动的音圈和连接于音圈远离所述振膜一端的弹性支撑组件，通过在所述夹板对应所述弹性支撑组件的位置增加辅助磁钢，所述辅助磁钢包括两个且分别位于所述主磁钢的相对两侧，所述辅助磁钢的充磁方向与所述主磁钢的充磁方向平行或垂直，上述结构使得所述夹板对应所述弹性支撑组件的部分与所述振膜之间的空间因设置所述辅助磁钢而得以充分利用，极大程度的提高了所述磁路***的驱动磁力，有效增加了所述发声器件的声学性能和改善了所述发声器件的振动对称性，可靠性更好。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (11)

  1. 一种发声器件，包括盆架以及分别固定于所述盆架的振动***和具有磁间隙的磁路***，所述振动***包括固定于所述盆架的振膜、固定于所述振膜并插设于所述磁间隙以驱动所述振膜振动发声的音圈以及固定于所述盆架并与所述音圈远离所述振膜一端连接的弹性支撑组件；所述磁路***包括固定于所述盆架的磁轭、固定于所述磁轭的主磁钢、分别位于所述主磁钢相对两侧且与所述主磁钢间隔形成所述磁间隙的副磁钢以及叠设于所述副磁钢且与所述弹性支撑组件间隔的夹板；所述弹性支撑组件与所述副磁钢沿所述振膜的振动方向在所述磁轭上的正投影至少部分不重叠，其特征在于，所述夹板包括叠设于所述副磁钢且呈环状的主体和由所述主体相对两侧分别向所述主磁钢方向延伸的支撑部，所述支撑部与所述主磁钢间隔；所述磁路***还包括分别固定于所述支撑部并与所述主磁钢间隔的辅助磁钢，所述辅助磁钢位于所述支撑部的远离所述振膜的一侧且分别与所述弹性支撑组件正对间隔设置。
  2. 根据权利要求1所述的发声器件，其特征在于，所述辅助磁钢和所述副磁钢沿所述振膜的振动方向在所述磁轭上的正投影互不重叠。
  3. 根据权利要求1所述的发声器件，其特征在于，所述支撑部包括由所述主体向所述振膜方向弯折延伸的第一壁以及由所述第一壁靠近所述振膜的一端向所述主磁钢方向弯折延伸的第二壁，所固定于所述第二壁远离所述振膜的一侧。
  4. 根据权利要求3所述的发声器件，其特征在于，所述辅助磁钢抵接于所述第一壁的靠近所述主磁钢的一侧。
  5. 根据权利要求1所述的发声器件，其特征在于，所述主磁钢与所述辅助磁钢均沿所述振膜的振动方向充磁，且所述主磁钢的磁极与所述辅助磁钢的磁极相反设置。
  6. 根据权利要求5所述的发声器件，其特征在于，所述辅助磁钢靠近所述振膜的一端的磁极为S极，其靠近所述弹性支撑组件的一端的磁极为N极。
  7. 根据权利要求1所述的发声器件，其特征在于，所述主磁钢沿所述振膜的振动方向充磁，所述辅助磁钢沿垂直于所述振膜振动方向充磁。
  8. 根据权利要求7所述的发声器件，其特征在于，所述辅助磁钢靠近所述主磁钢的一端的磁极为S极，其远离所述主磁钢的一端的磁极为N极。
  9. 根据权利要求1所述的发声器件，其特征在于，所述主磁钢呈矩形，所述副磁钢分别位于所述主磁钢长轴相对两侧，所述弹性支撑组件分别位于所述主磁钢短轴相对两侧，所述辅助磁钢分别位于所述主磁钢短轴相对两侧。
  10. 根据权利要求1所述的发声器件，其特征在于，所述弹性支撑组件包括一端固定于所述盆架，另一端固定于所述音圈远离所述振膜一端的弹性件以及连接于所述弹性件远离所述振膜一侧的辅助振膜。
  11. 根据权利要求10所述的发声器件，其特征在于，所述弹性件为柔性电路板，所述音圈与所述弹性件电连接。
PCT/CN2019/110613 2018-12-29 2019-10-11 发声器件 WO2020134346A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811646626.4A CN109889965B (zh) 2018-12-29 2018-12-29 发声器件
CN201811646626.4 2018-12-29

Publications (1)

Publication Number Publication Date
WO2020134346A1 true WO2020134346A1 (zh) 2020-07-02

Family

ID=66925367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/110613 WO2020134346A1 (zh) 2018-12-29 2019-10-11 发声器件

Country Status (3)

Country Link
US (1) US10674279B1 (zh)
CN (1) CN109889965B (zh)
WO (1) WO2020134346A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209390361U (zh) * 2018-12-29 2019-09-13 瑞声科技(新加坡)有限公司 发声器件
CN109889965B (zh) * 2018-12-29 2021-02-26 瑞声科技(新加坡)有限公司 发声器件
CN209390347U (zh) 2018-12-29 2019-09-13 瑞声科技(新加坡)有限公司 发声器件
CN110022517B (zh) * 2018-12-29 2021-08-10 瑞声科技(新加坡)有限公司 发声器件
CN213462304U (zh) * 2020-07-06 2021-06-15 瑞声科技(新加坡)有限公司 一种扬声器
CN112671200A (zh) * 2020-12-15 2021-04-16 歌尔股份有限公司 线性振动电机
CN216491034U (zh) * 2021-09-22 2022-05-10 瑞声光电科技(常州)有限公司 扬声器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202276460U (zh) * 2011-09-05 2012-06-13 瑞声声学科技(常州)有限公司 微型扬声器
CN207560323U (zh) * 2017-08-22 2018-06-29 瑞声科技(新加坡)有限公司 扬声器
US20180302722A1 (en) * 2017-04-15 2018-10-18 Aac Technologies Pte, Ltd. Speaker
CN109889965A (zh) * 2018-12-29 2019-06-14 瑞声科技(新加坡)有限公司 发声器件
CN209390347U (zh) * 2018-12-29 2019-09-13 瑞声科技(新加坡)有限公司 发声器件

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9131304B2 (en) * 2012-06-20 2015-09-08 Panasonic Intellectual Property Management Co., Ltd. Loudspeaker and equipment including the same
US9197965B2 (en) * 2013-03-15 2015-11-24 James J. Croft, III Planar-magnetic transducer with improved electro-magnetic circuit
CN203661282U (zh) * 2013-12-11 2014-06-18 瑞声光电科技(常州)有限公司 磁路***及应用所述磁路***的扬声器
CN205566633U (zh) * 2016-01-28 2016-09-07 瑞声光电科技(常州)有限公司 微型发声器件
CN205793288U (zh) * 2016-05-26 2016-12-07 瑞声科技(新加坡)有限公司 微型发声器
CN205847559U (zh) * 2016-05-26 2016-12-28 瑞声科技(新加坡)有限公司 微型发声器
CN206894884U (zh) * 2017-03-06 2018-01-16 瑞声光电科技(常州)有限公司 发声器件
CN207354585U (zh) * 2017-08-28 2018-05-11 常州美欧电子有限公司 电磁扬声器
CN207968888U (zh) * 2017-11-22 2018-10-12 瑞声科技(新加坡)有限公司 发声器组件
CN207869351U (zh) * 2018-01-24 2018-09-14 瑞声科技(新加坡)有限公司 发声器件
CN108322869B (zh) * 2018-01-24 2021-01-15 瑞声科技(新加坡)有限公司 发声器件
CN208190901U (zh) * 2018-01-30 2018-12-04 瑞声科技(新加坡)有限公司 发声器件
CN207968939U (zh) * 2018-02-02 2018-10-12 瑞声科技(新加坡)有限公司 微型发声器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202276460U (zh) * 2011-09-05 2012-06-13 瑞声声学科技(常州)有限公司 微型扬声器
US20180302722A1 (en) * 2017-04-15 2018-10-18 Aac Technologies Pte, Ltd. Speaker
CN207560323U (zh) * 2017-08-22 2018-06-29 瑞声科技(新加坡)有限公司 扬声器
CN109889965A (zh) * 2018-12-29 2019-06-14 瑞声科技(新加坡)有限公司 发声器件
CN209390347U (zh) * 2018-12-29 2019-09-13 瑞声科技(新加坡)有限公司 发声器件

Also Published As

Publication number Publication date
CN109889965B (zh) 2021-02-26
US10674279B1 (en) 2020-06-02
CN109889965A (zh) 2019-06-14

Similar Documents

Publication Publication Date Title
WO2020134346A1 (zh) 发声器件
US11073143B2 (en) Sound generator
WO2020134345A1 (zh) 发声器件
CN111343542B (zh) 扬声器箱
US10979821B2 (en) Sound generator
US10932059B2 (en) Speaker
CN109348373B (zh) 发声器件
WO2020140545A1 (zh) 发声器件
WO2021223255A1 (zh) 发声器件
WO2024055384A1 (zh) 多功能发声器件
CN110166902B (zh) 发声器件
CN209017299U (zh) 扬声器
WO2021114211A1 (zh) 发声器件
WO2020134344A1 (zh) 发声器件
US10979815B2 (en) Speaker
WO2021253534A1 (zh) 发声器件
WO2020134356A1 (zh) 扬声器
WO2024108735A1 (zh) 多功能发声器件
WO2024087296A1 (zh) 多功能发声器件
CN210093500U (zh) 发声器件
WO2022068002A1 (zh) 发声器件
WO2021114122A1 (zh) 发声器件
WO2022007170A1 (zh) 发声器件
WO2021114210A1 (zh) 发声器件
WO2021119995A1 (zh) 发声器件

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19905538

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19905538

Country of ref document: EP

Kind code of ref document: A1